hofmeyer



"Mrs dramas GEORGE A. HOFMEYER, OF NE\V YORK, N. Y., ASSIGNOR TO ROSALIE HOFMEYER, OF SAME PLACE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 577,658, dated February 23, 1897.,

Application filed January 2 8, 1894- Serial No. 497,752. (No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE A. HOFMEYER, a citizen of the United States, residing at New York city, in the county and State of New York, have invented a certain new and useful Improvement in Lubricators, of which the following is a specification.

The object of my invention is to provide a device for lubricating the guide-rails for elevators with oil. The main object is to provide a device adapted to be secured to the elevator which will be constantly in contact with the rail and automatically lubricate the same evenly and without waste; and my invention consists in the novel devices and combinations of devices hereinafter more fully described, and pointed out in the claim.

In the accompanying drawings, which illustrate my invention, Figure 1 is a plan view of a lubricator with the cover removed; Fig. 2, a plan View of the inner side of the cover; Fig. 3, a cross-section on the line 3 3 of Fig. l, and Fig. at a cross-section on the line 45 4c of Fig. 1.

Thelubricator consists of an oil-chamber a, having branch chambers a extending therefrom and communicating directly therewith; Z), the roller for lubricating the face of the elevator-rail, and b b the rollers for lubricating the sides of the rail; 0, a roller for feeding oil to roller 1), and c c rollers for feeding oil to rollers b b.

Roller b is supported in suitable bearings d, secured to the inside of the cover a of the oil-chamber, and this cover is preferably curved, as at c where it extends over roller b. Cover a is also provided with a hinged section a for introducing oil into the chamber. The cover a is secured to the chamber in any suitable manner, preferably by screws passing through screw-holes a in the cover and in the body of the chamber. The feeding-roll c, which feeds oil to roller 1), is supported by spring-bearings d, secured to the bottom of the chamber a, the object of the spring bearing being to maintain roller 0 against roller 1) in order to feed the oil. to roller 1) and also to compensate for the wearing of the rollers. Rollers Z) are supported by spindles e, which at one end have a bearingin slot 6, formed in the casing, and at the other end in a slot 6 in projection 6 formed integral with the casing. The object of providing slots for the spindle of rollers 19 is to permit lateral movement of the rollers in order to compensate for the vibration of the elevator. In order to maintain these rollers against the sides of the rails, I provide each spindle e with a stirrup f, which has a stem f working in box f secured to the casing, and within this boX is a spiral spring f exerting its pressure against the stirrup and forcing the rollers toward the rail.

Feed-rollers c for feeding oil to rollers b are supported by spring-bearings g, secured to stirrup f, for the same reason that feedroller 0 is supported by spring-bearings.

The lubricator is movably held to the elevator by screw-bolts passing through slots h in flanges h, formed integral with the casing. I provide a spring 4, which is placed between plate 2" on the rear of the casing and an angleiron '6 secured to the elevator. This spring maintains roller 1) against the face of the rail and compensates for the vibration of the elevator. Thus by providing springs'i andf I reduce the strain on the lubricator, since if the lubricator were rigidly secured to the car the strain on the lubricating-rollers, as well as on the casing, would be considerable.

In supplying the lubricator with oil itis only necessary to put in a sufficient amount to partly immerse the feed-rollers c and o.

By providing a lubricator of the character above described the oil is easily spread upon the rail and with the least amount of waste, since the oil is evenly distributed by the feedroller over the lubricating-rolls and at the same time overfeeding is avoided.

What I claim is An elevator-lubricator, comprising a casing forming a main oil-chamber, and branch oil-chambers, a roller I) mounted in immovable bearings within the main oil-chamber, a spring-pressed feed-roller immersed in the oil'and in contact with said roller 12, a spring engaging the casing for moving the same, carried by the support for said rollers 12, sub- Whereby said roller 1), will be kept in constant stantially as set forth. 1 o engagement With the elevator-rail, a smaller This specification signed and witnessed this roller 19 in each branch oil-chamber carried 18th day of January, 1894.

in an independent spring-pressed support, GEORGE A. IIOFMEYER. whereby the smaller rollers Will be kept in Witnesses:

constant engagement with the sides of the ele- LAURENCE R. KERR vator-rail, and a feed-roller for each roller Z) R. .G. ALEXANDER. 

